#define  _CRT_SECURE_NO_WARNI
#include<stdio.h>
int main() {
	int i = 0;
	int a = 0;
	int c = 0;
	int arr[] = { 0 };
	scanf("%d\n", &arr);
	for (i = 0; i <= a; i++)
	{
		arr[] = i;
		while (arr[i] < arr[i + 1])
			c = arr[i];
		return 0;
	}
}

#include<stdio.h>
int main()
{
	int b = 0;
	int a = 0;
	for (a = 1; a <= 200; a++)
	{
		if (a == b)
			printf("%d", a);
		if (a % b == 0)
			b++;
		continue;

	}
}